Up to 30% of patients undergoing intracranial surgery present moderate to severe pain. In this type of surgery, the restriction of the pharmacopoeia, which goes against the concept of multimodal analgesia, results in the important use of opioids not without consequences in terms of complications. Numerous studies have highlighted the benefits of scalp blocks in postoperative pain. The originality of this study lies firstly in the fact that the scalp blocks will be guided by ultrasound and secondly, the incidence of severe pain after scalp blocks will be evaluated
Patient managed in the neurosurgical unit for supratentorial intracranial surgery.
Person affiliated or beneficiary of a social security plan.
Free, informed, and written consent signed by the participant and the investigating physician (at the latest on the day of inclusion and before any examination required by the research).
Surgical procedure under awake surgery (systematic realization of scalp blocks necessary)
Aphasia of comprehension preoperatively or expected postoperatively or any other neurological impairment making self-evaluation of pain impossible.
Contraindication to the use of local anesthetics: allergy or history of intoxication to local anesthetics
Contraindication to adrenaline infiltration: severe ventricular rhythm disorders, severe obstructive cardiomyopathy, unstable coronary insufficiency, hypersensitivity to adrenaline.